4554 Datasheet, PDF (1/138 Pages) Renesas Technology Corp – SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

4554 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
REJ03B0043-0300Z
Rev.3.00
Aug 06, 2004
DESCRIPTION
The 4554 Group is a 4-bit single-chip microcomputer designed with
CMOS technology. Its CPU is that of the 4500 series using a
simple, high-speed instruction set. The computer is equipped with
main clock selection function, four 8-bit timers (each timer has one
or two reload registers), interrupts, and LCD control circuit.
The various microcomputers in the 4554 Group include variations
of the built-in memory size as shown in the table below.
FEATURES
qMinimum instruction execution time .................................. 0.5 µs
(at 6 MHz oscillation frequency, in high-speed through-mode)
qSupply voltage
Mask ROM version ...................................................... 2.0 to 5.5 V
One Time PROM version ............................................. 2.5 to 5.5 V
(It depends on oscillation frequency and operation mode)
q Timers
Timer 1 ...................................... 8-bit timer with a reload register
Timer 2 ...................................... 8-bit timer with a reload register
Timer 3 ...................................... 8-bit timer with a reload register
Timer 4 ................................. 8-bit timer with two reload registers
Timer 5 .............................. 16-bit timer (fixed dividing frequency)
qInterrupt ........................................................................ 7 sources
qKey-on wakeup function pins ................................................... 10
q LCD control circuit
Segment output ........................................................................ 32
Common output .......................................................................... 4
qVoltage drop detection circuit (Reset) ......................... Typ. 1.5 V
qWatchdog timer
qClock generating circuit
Main clock
(ceramic resonator/RC oscillation/on-chip oscillator)
Sub-clock
(quartz-crystal oscillation)
qLED drive directly enabled (port D)
APPLICATION
Remot control transmitter
Part number
M34554M8-XXXFP
M34554MC-XXXFP
M34554EDFP (Note)
Note: Shipped in blank.
ROM (PROM) size
(✕ 10 bits)
8192 words
12288 words
16384 words
RAM size
(✕ 4 bits)
512 words
512 words
512 words
Package
64P6N-A
64P6N-A
64P6N-A
ROM type
Mask ROM
Mask ROM
One Time PROM
Rev.3.00 Aug 06, 2004 page 1 of 136
REJ03B0043-0300Z